I do not understand why would you raise k3, 34s, and you even said cold call, that's just bullshit.
you are trying to steal the blinds, you are hopign the sb/bb folds and even if they don't you have POSITION on them postflop. K3s isnt a bad hand vs a random hand in the sb or bb, especially if you can play well postflop. If you can't play well postflop, then you shouldnt raise these kinds of hands on teh button when OPEN FOLDED to you.